5,6,8,4,82,5,9,1,64,0,7,3,39,2,X,8,9每一行,前两个一组合成两位数,最后两个一组合成两位数==>56,8,4825,9,1640,7,3392,X,89 56-48=825-16=940-33=792-89=X=3 问号那里应该填3